Store nodes synchronize recent messages with each other.
Store node to store node synchronization happens on a periodic manner.
Store node to store node synchronization happens after re-connection is detected.
Usability
Remote store peer selection is done automatically.
Reliability
No message discrepancies at any time, for time windows of 5 minutes to 60 minutes ago.
Performance
A sync of a 60 minutes time window happens under 60 seconds, assuming 15 msgs/second (total), 150KB message size and a maximum of 10% pre-existing message discrepancy (Vac-DST).